Download OU B.Sc 2018 May-June 2nd Year 2nd Semester 7109 Chemistry Question Paper

Download OU (Osmania University)B.Sc (Bachelor of Science Maths, Electronics, Statistics, Computer Science, Biochemistry, Chemistry & Biotechnology) 2018 May-June 2nd Year 2nd Semester 7109 Chemistry Previous Question Paper

Code No. 7109 I E
FACULTY OF SCIENCE
B.Sc. IV-Semester (CBCS) Examination, May / June 2018
Subject : Chemistry
Paper - IV
Time : 3 Hours
Max. Marks: 80
SECTION - A (5 x 4 = 20 Marks)
(Short Answer Type)
Note : Answer any FIVE of the following questions.
1 Wn?te the names of the following coordination compounds
(a) [Co(NH3)4C|z] CI (b) K3[Fe(CN)e] (c) [Pt(en)2C|2](NO NH3)4C121
2? Discuss the classi?cation of organometallic compounds with . ?
no \
3 Why are carboxylic acids stronger acids than phenols?
4 Give any two methods for the preparation of nitro alka A
u
5 The conductivity of a solution containing 1 gram of an BaClz in 200 ml of
water has been found to be 0.0058 mho cm". What are th molar conductivity and
equivalent conductivity of the solution ? (mol. tof? CI; = 208).
? : mpla.
Note: Answer all questions fremthe following.
\ "X, + .
9 ) Discuss the form tienWi 0142-, [Cu (NH3)4]2 and [Fe(CNhla? on the beats of l
S? valence bond th ). .
OR
/ ti 6 methods of ferrocene.
(b) (i) $13!??ng rule? Explain with two examples.
?1
( )
10 (3) "moiod?zgiumac?on
m on
"'7 mTVoImrd ? zoom mm
OR
math ketone from acetoacetic ester?
? w yl ethyi trobenzene in alk I? '
(b)(l) .Howwill ?Judo" W of hi 3 me medium.
(13) W?b "?9

?111 '(auB?How will you determine the transport number of an 1an _.
(ii) A solution of silver nitrate containing 12.149 of silver in 50 ml of solution
gmnylsed between platinum electrodes. After electrolysis. 50 ml of ?16 ' -.
'zgnode solution was found~to contain 11.55 g of silver. while1.25 g of me??l??
? ,5" :s depOSited or)" eg?eathode. Calculate the transport number of
. 5.14.25?. .
"' rigorbitals-ef-emene and 1. 3 ?b%diene.
.sele?e?vereac?on? Explairwlith one example.
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